Spark-arrester.



W. C. MICHAELS.

SPARK ARBESTER. APPLICATION r1151) MAR. 17. 1915..

Patented F61). 15,1916.'

amwuto'p I wi wamo THE COLUMBIA PLANOGRAPH c0-, WASHINGTON. D. C.

WILLIAM c. MICHAEiL S,'OE JUDSONjNbRTHDAKOTA.

"SPA'RK-ARRESTER.

Specification of Letter's'Patent. PatentedFebQli1916.

A pucan n filed March 17, 1915. Serial no. 14,959.

T 0 all whom it may concern Be it known that I, WILLIAM C.M1CHAELS, a citizen of the United States, residing at Judson, in the county of Mortonand State of North Dakota, have invented certain new and useful Improvements in Spark-,Arresters, of which the following "is a specification.

This invention relates to improvements in spark arresters, and has for one of its objects to simplify and improve the construction and increase the efliciency and utility of devices of this character.

Another object of the invention is to provide a simply constructed device which may be readily assembled when required and dismembered for removing the sparks or for cleansing and repairs.

lVith these and other objects in view, the invention consists in certain novel features of construction as hereinafter shown and described, and then specifically pointed out in the claims; and in the drawings illustrative of the preferred embodiment of the inven-' tion, Figure 1 is a sectional elevation of the improved device; Fig. 2 is a transverse section on the line 2-2 of Fig. 1.

Corresponding and like parts are referredv to in the following description and indicated in all the views of the accompanying drawings by the same reference characters.

The improved device comprises a lower member or shell 10, preferably flaring upwardly and outwardly,.or conical in outline and provided with a band 11 at its lower end adapted to engage over a smoke stack, a portion of which is represented at 12. The upper end of the shell is open, and bearing upon the open upper end of the shell is a hood 13, preferably conical, and having a tubular discharge member 14 supported therein. The tubular member 14 is formed with straight sides and open at the ends, the upper end extending above therupper end of the hood and the lower end extending for a distance into theinterio-r of the shell 10, as shown in Fig. 1.

Located within the shell 10 and spaced from its upper end are a plurality of bracket devices 15 which preferably include curved portions 16, as shown in Fig. 2, the curved portions being concentric to the shell. Supported upon the brackets 15-16 is a spark receiving cone 17 the upper open end of the cone being less in diameter than the open upper end of the shell 10, and. likewise extending by" its open upper end above the lower line of. the tubular member v14.

With the device thus constructed, it will ,be obvious that as the smoke, cinders and other products of combustion pass upward throughthe stack 12, they engage against the outer face of the cone 17 and against the downwardly sloping walls of the shell 10 and passthrough the relatively narrow throat portion 18 between the upper end of the cone and the adjacent portion of the tu-' bular member. The products of the combustion are thereby retarded and held back and the larger particles of the cinders are precipitated and returned to the stack, while the smoke, gases and lighter particles of the products of the combustion pass upward against the inner face of the hood 13 and are thereby diverted toward the tubular member 14' and pass thence downwardly beneath the lower edge of the tubular member and are again retarded, and the remaining particles of cinders and like heavier matter precipitated and fall into the cone 14, the smoke and gases only passing through the member 14. By this simple means, the smoke is freed from its heavier particles, including the sparks, the latter being retained in the cone 17, as before stated.

When a sufficient quantity of the sparks.

and cinders have been deposited in the cone 17 to render the same liable to be clogged thereby, the hood 18 together with the tubular member 14 is removed and the cone 17 with its load of cinders lifted out and emptied and then returned to itsposition on the brackets 1516 and the cone 17 and the tubular member 14 restored. By this means, the contents of the cone may be readily discharged, and while the cone is removed the interior of the shell and the cone may be readily cleansed, if required.

The improved device is simple in construction, can be constructed of any required size or capacity to adapt the same to any size of stack.

The improved device will be found particularly advantageous for use upon traction engines which burn light material,

such as straw, and. in the vicinity of straw stacks and like inflammable material, thus rendering the generator safe to use in such localities.

Having thus described the invention, What is claimed as new is 1. In a spark arrester, a shell adapted to be supported upon asmoke stack, a plurality of bracket devices spaced apart andat the ends and suspended Within said shell, a plurality of bracket devices spaced apart and attached at their outer ends to the shell and'projecting inwardly therefrom, the inner portion of each bracket being extended laterally and in segmental form, and a cinder receiver supported loosely upon the segmental portions of said brackets and maintained thereby concentrically of the shell, the upper end of the cinder receiver being larger than the tubular member and projecting above the lower end of the same. In testimony Whereof I affix my signature in presence of tWo Witnesses.

WILLIAM C. MICHAELS. ft. s] Witnesses v WV. E. KLUEGER,

EARL M. HELMS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

